Saw-sharpening machine



R. ASMONDIS.

SAW SHARPENING MACHINE.

APPLICATION FILED .IUNE 28| 1919.

` Patented Jan. 6, 1920.

3 SHEETSTSHEET l.

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R. ASMONDIS.

SAW SHARPENING MACHINE.

APPLICATION F|LED1uN2s,1919.

Patented J an. 6, 19%.

v:lm-25 3 SHEETS-SHEET 24 M IMU I Ill 815 L Us@ UIHUIIII l I'II H IIIIIH WITN ES? ffm/yf R. ASNIONDIS.

SAW SHARPENING MACHINE.

APPLICATION FILED LUNE 23. 1919.

Patented Jan. 6, 1920.

3 SHEETS-SHEET 3.

Rocco AsMoNnIs, or ZELIENOPL'E, PENNSYLVANIA.

SAW-SHARPENING MACHINE.

Specication of Letters Patent.

Patented Jan. 6, 1920.

Original application filed December 10, 1918, Serial No. 266,033. Divided and this application led June 28, 1919. Serial No. 307,315.

To all whom t may concern:

Be it known that I, `Rocco AsMoNDIs, a citizen of the United States, residing at Zelienople, in the county of Butler and State of Pennsylvania, have invented certain new and useful Improvements in Saw- Sharpening Machines, of which the following is a specification.

This invention relates to saw setting and sharpening machines and is a division of my application Serial No. 266,033, filed December 10th, 1918, and has for its object to provide a machine of such class, in a manner as hereinafter set forth, with means whereby saws of different sizes can be quickly and readily sharpened and set.

Further objects of the invention are to provide a saw setting and sharpening machine which is simple in its construction, strong, durable, conveniently operated, efficient in its use, readily set up and comparatively inexpensive. a

vWith the foregoing and other objects in view the invention consists of the novel construction, combination and arrangement of parts as. hereinafter set forth and illustrated in the accompanying drawings wherein is shown an embodiment of the invention, but it is to be understood that changes, variations and modifications can be resorted to which come within the scope of the claims hereunto appended.

In the drawings wherein like reference characters denote corresponding parts throughout the several views Figure 1 is a top plan View broken away of a saw setting and sharpening machine in accordance with this invention.

Fig. 2 is a side elevation broken away.

Fig. 3 is a sectionon line III-III, Fig. 1.

Fig. 4 is a top plan view, broken away, with the sharpening device in the operative position. u

Fig. 5 is a section on line V--V, Fig. 4.

Fig. 6 is a section on line VI-VI, Fig. 5.

Fig.. 7 is a sectional detail view of the sharpening device with an inclining attachment for the file.

Fiv. y8 is a section on line VIII-VIII, Figi.

Fig. 9 is a cross sectional view of the rack for the setting device, the saw holder and a supporting bracket therefor.

Fig. 10 is a side View of Fig. 9. f

Fig. 11 is a sectional detail View of the sharpening device.

Figs. 12 and 13 are respectively a top plan and a side elevation of a modilied form.

Fig. 14 is a detail view illustrating the supporting bracket for the end of the track.

Referring to Figs. 1 to 4 and 9 and 10 the machine comprises a saw set consisting of a combined track and saw holder, which is adjustable lengthwise so as to provide for band saws of different lengths, supporting brackets for said track and holder, and a tooth setting device.

The supporting brackets, preferably four in number, is each constructed of a pair 'of oppositely disposed standards l, 2, provided with right angular extensions 3, through which extend holdfast devices, not shown, for fixedly securing said standards to a bench or other support. The inner face of each standard is out away to form a shoulder or ledge 4 and a pocket 5, for a purpose to be presently referred to.

The combined saw and track-holder element is oval in contour and formed of side and end sections so that the length thereof can be increased or diminished when occasion requires to provide for different lengths of saws. The side sections of said element each comprises a pair of oppositely disposed sectional channel shaped members 7 and 8, which are mounted in the pockets 5, seated on the shoulders 4, and project inwardly from the inner faces of the standards l and 2, and constitute supports for the sectional track forming members 9 and 10. v

Each of the members 9 and lO is formed of a series of sections, corresponding in number to the number of sections of the members 7 and 8. The members 9 and 10 stand on edge and each has its lower portion formed with an extension 11 which is seated in and on a channel shaped member. The said members 9 and 10 are positioned against the inner faces of the standards 1 and 2, as well as projecting above the top thereof. Each of the members 9 and 10 has a lateral flange 12, which is seated upon the top edge of a standard, and above the flange 12, and which is formed with vertically disposed teeth 13 throughout to form a rack or toothed track.

The standards 1 and 2 are spaced apart in contour and consists of two curved mem-` bers 46 and 47; the former is an outwardly extending flange 48, and the latter an inwardly extending flange 49.

The outer face of the member 46, above the liange 48, and the inner face of the member 47, above the ange 49, are provided with vertically disposed teeth 50, forming, when the end sections are connected to the side sections, a continuation of the teeth 13. The end sections are mounted in slidable steering brackets 51 arranged therefor.

The members 46 and 47 are spaced apart, and the space between said members forms a continuation of the space between members 9 and 10 of the said sections. The space between the said members referred to, receive the saw 15, and the members 9 and 10, as well as the members 46 and 47 act as clamps to hold the saw 15 in position to be acted upon by the saw device or the sharpening device. The brackets 51 not only act as supports for the members 46 and 47, but also as a clamp therefor.

The end members of the combined track and holder element are deachably connected to the side members by dowels 52. rThe sections of each of the side members are detach-ably connected together by the dowels 52. By this arrangement the sections, which form the track and holder element can be conveniently removed and replaced when desired.

The tooth setting device, which is porta-ble and is manually propelled around the track to set the teeth of the saw, consists of a body portion rectangular in contour and formed of two sections 16 and 17. The latter having its horizontal arms 18 provided with pockets 19, into which are adjustably Y mounted the horizontal arms 2() of the section 17. The arms 20 are'adjustably connected in the arms 18 by set screws 21, and

by this arrangement the width of the body portion can be adjusted when desired. Each of the sections 16 and 17, is provided with a pair of bosses 22 through which extends a shaft 23, carrying a nut 24, bearing on a boss 22, to maintain the shaft from downward movement. The shafts 23 are fixed in the sections 16 and 17, and depend therebelow. Loosely mounted on each of said shafts 23, is a pinion 25, which meshes with the teeth 23. The pinions 25 are arranged in pairs, and one is provided with a beveled and toothed saw set which is of greater diameter than the pinion and is indicated at 26. The other Vpinion is formed with the disk 27, having a straight and a beveled edge. The disk 27 is of greater diameter than its respective pinion and overlaps the top of the teeth 13. rEhe saw set overlaps the top of the teeth 13. The saw sets 26 are what may be termed tooth setting disks, and are oppositely disposed with respect to each other, and like arrangement is provided 'with respect to the disk 27. These latter actin a manner as an anvil.

When the saw setting device is in operative position, a toothed setting disk is arranged in advance of an anvil disk on one side of the track, and onl the other side thereof an anvil disk is arranged in advance of the other tooth setting disk.

The pinions are maintained in position on the shafts 23 by the nuts 28.

rlhe arrangement of the disks 27 is such that each disk will act on every alternate tooth, whereby one disk 27 will act on one tooth in one direction, and the other disk will set the adjacent tooth in the opposite direction.

rlhe saw sharpening device, illustrated in Figs. 1, 2, 4 to 3 and 10, consists of a pair of brackets secured within and projecting above the oval shaped track on which runs the saw setting device. Each of said brackets is formed of a lower section 28zb and an upper ,section 29. The latter is hinged to theA former, as at 30, whereby the section 28n can be adjusted at an angle tothe section 29 and maintained in the position to which it has been adjusted. Mounted on thesection 29 is an adjustable head 31, formed with a pair of polygonal shaped openings 100 32 and a socket 33 into which extendsthe section 29. Extending through the head 31 and engaging in the section 29 is a threaded bolt 34, surrounding said bolt 34 and arranged in the socket 33, againstthe section v105 29, is a coiled spring Carried by the threaded upper end of the bolt'34 is a wing nut 36 which when adjusted will regulate f the position of the head 31.

Extending through the-openings 32 is a 110 pair of longitudinally adjustable rods 37, to

'the inner end of which issecured a channel shaped carrier 38. Slidably mounted in the carriers 38 is a rectangular frame 39, having the inner face of each side bar thereof provided with a toothed rack 40, which constitutes a series of opposed seats for a sharpening element in the form of a file 41.

When the teeth of the saw are to be sharpened the section 29 is swung on its pivot to 120 the position shown in Fig. 4, and is then locked in position. The frame 39 is then so arranged that it can be moved horizontally with respect to the track for the saw set, whereby the file 41 will act on the teeth of 125 the saw for the purpose of sharpening them. The rods 37 enable the frame 39 to be shifted longitudinally so that the file can act on successive teeth of the saw. That portion of the saw which is so arranged at the curves of the track can either be operated on manually or can be shifted to a position in the path of the file carried by the frame 39.

The ends of the file are reduced so that they can be readily positioned in the seats formed by the gullets between the teeth. The depth of the gullets is sufficient, in connection with the side bars of the frame, to maintain the iile in the desired position to act on the teeth of the savv. In some inw stances it may be required to tilt or incline the file slightly; if so, an L-shaped member 42 is employed which is notched, as at 43, to take over an end of the file. See Figs. 7

and 8. The member 4t2 may be detachablyl connected to the frame 39l or held in position by the operator.

Referring to Figs. l2 and 13, a straight track all is provided for the saw set 45, and in this connection the latter consists of two pinions, one toothed setting disk and one beveled disk. When the saw set is run in one direction it sets every alternate tooth. It is then reversed and run in the opposite direction and sets the other teeth or' the saw.

The tooth setting disks used may have their peripheries set up in a manner to provide for dilierent shape and size saw teeth. In Fig. 3 the tooth setting disk has its periphery of a different shape from the tooth setting disk shown in Fig. l2.

The pinions traveling against the toothed racks of the members 9 and 10 tend to assist in clamping the saw in position.

The arrangement of the saW set in Figs. l and 3 is such that the tooth setting disk in advance will set a series of alternate teeth prior to the action of the tooth setting disk, arranged at the rear of the saw set.

As the head 31 is adjustable, the frame 39 can be positioned in such a manner so that the le 4l will properly contact With the teeth of the saw to sharpen them.

The pinions 25 can be removed when desired especially When a change of tooth setting disks is required.

What I claim as new and desire to secure by Letters Patent is:

l. A device for the purpose set forth oomprising a sharpening element consisting of a rectangular frame having the side bars' thereof formed with racks to provide opposed seats, a file mounted in said seats, and a support for the frame.

2. A device for the purpose set forth comprising a sharpening element consisting of a rectangular frame having the side bars thereof formed with racks to provide opposed seats, a le mounted in said seats, and a support for the frame, said support providing for longitudinal and horizontal movement of the frame.

In testimony whereof I aihX my signature.

ROCCO ASMON DIS. 

